I Use SAP R3 System. My Execution authority limit is $10000 and i would like to check if we can give Sort warning message if the PO value is going above $ 10000. If this involves cost then it becomes little difficult for me to implement he changes. Please advise.
Execution authority is not a standard SAP term.
SAP uses the release strategy so that managers can approve purchase orders over a a certain limit. But processing of a purchase order is not limited by value in SAP. Anybody with proper standard authorization for PO creation and changes can process purchase orders.
If you want it differently then you have to go with own development by defining the limits per user in Z-table and checking those limits then in exits or BADIs during PO processing.